Description

When viewing diffs, jjui's preview does not wrap long lines. I'm using delta as my diff viewer, but it seems that jjui does not set the viewport width.

Steps to Reproduce the Problem

1. Use delta as your diff viewer
2. View a file with long lines
3. The end of the lines gets cut off

Expected Behavior

Lines should wrap.

Actual Behavior

They do not.

Specifications

• Platform: Ubuntu 24.04
• Version: 0.9.12